Solve for x
x = \frac{180}{\pi} \approx 57.295779513
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720=\pi \times 2^{2}x
Multiply both sides of the equation by 360.
720=\pi \times 4x
Calculate 2 to the power of 2 and get 4.
\pi \times 4x=720
Swap sides so that all variable terms are on the left hand side.
4\pi x=720
The equation is in standard form.
\frac{4\pi x}{4\pi }=\frac{720}{4\pi }
Divide both sides by 4\pi .
x=\frac{720}{4\pi }
Dividing by 4\pi undoes the multiplication by 4\pi .
x=\frac{180}{\pi }
Divide 720 by 4\pi .
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